Liquid-discharge nozzle



April 1930. w. PROTZELLER 1 1,754,768

I LIQUID DISCHARGE NOZZLE Filed Feb. 23, 1927 Patented Apr. 15, 1930 ulfilwJflEL- air can; w HARRY W. PROI'ZELLER, OF EAST CHICAGO, INDIA A, ASSIGNOR To 0. i .iomJAN COMPANY, OF EAST CHICAGO, INDIANA, AcoRPORA'JIIQN OF INDIANA LIQUID-DISCHARGE 'NOZZLE Application filed Februaryi eilateshto improyements .in no zles it consists of the matters hereinlatter i c fi ri dan more particularly pointed utin th appendc claims; .i 3 i The primary ob'ect ,ofthe lIlVGlltlOIhlS to provide siinple and efiicient nozzle especially' adapted for {ESQ rail joint oilers, to form a substantially conical stream whichis heavier at diametrically opposite points in one plane than it is; at diametrically opposite points inanother plane i v .A further obl'ect of; the (invention. is to i i d franc o t ide .cfiits casing and! zWhileU in actualuse whereby thje stream desired to be produced inayjbe more readily attained,

ewa-llaportionlandlfrear Wall portion being andthe integritythereofanaintained.

lT eser bi a s" t h in en ion, as Well as.

others, together with the many advantages thereof willlmo reiully appear as I proceed with rny specification. l

n hed awingsz F g,- liea-t l w,rl clc 'at of -pair of sb iete r le l l berlring .mir inv n io in the relative position they occupy with reference to rail and .the .joints thereof when embodied lnf ,railjointoiler i u a Fig} a lo 'gitudinalsectional View on an enlarged scale, through one oi the nozzles Fig] 3 is a transverse vertical section through the sarne as taken on the line 3 3 of Fig.2."

Fig. same. t u

is a'perspective View of a 'valve member forming a part of myimproved spray 4 a View in front elevation of the nozzle.

Fig. 16 is a diagrammatical View illustrat ing the cross sectional shape of the conical discharge produced by ,my; improved nozzle.

Referring now in detail to that embodlment of the invention illustrated in the ac- 23, iscnfseriarno 17q,295.

companying drawings, 11 ind-icatetub-ular nozzlecasing each closed at 1ts bottom end as by a threaded plug 2 and eachinade integrail with conduits in whichequal=pressures arev maintained. Said conduits form :parts of: arailljoint oiler and when-in their-= normal operative position thereon they are 7 disposed in Vertical planes equally spaced on eacln side of the: rail 4, the :abutting ends ofthe rail sections thereof being con11'ected to--' gGtllGI ,-by jOiI1t or fish plates 5, andbolts t'i inwthei mannerawell known. Although the" nozzle: casings le-eluare made integral with 11 the conduits. or members 3-3 which are con nected to a suitable source of spraying fluidunder; pressure; lsaid nozzle casings are 'each inclined-outwardly from the plane of the i associated 1condu=it and-as rthe structure in Lueachicasing is the :same, a detailed description of one will suffice for'rb'oth. w Each nozzlecasingiwhiclr is tubular incross section includes a front wair oreom iandia rear wall portion 8 the 'te1'1ns front relative only as to'the positions they occupy with respect to the rails: Made?integralwith and extending at a right angleto the rear? wat-1L8; is a cylindrical boss 9' which has' 'an 1; interiorlyvthreaded bore: 101 therein opening into the interior of the casing 1.1a 11 n the-front A 0 wall portion 7 of .theenoz'zle casing 'a1iid -co]-- axial Witlnthe bore 10visprovidedran inwar ly tapering valve :seat like discharge orifice vll thel 1 defining surface of which isiiradial witlnrespect to ;a pointiarranged to the rear o of; the axis iofnthe nozzle: casing. It is ap .parent from a colnparisona ol lTi-igs. Qwand 3 that due to'the transverse curvature OiilthB= frontlwall portionii' of the nozzle casing, the length of? said iiori fice inv ai plane -;pas's i11g through diametrically oppositespoints in "a longitu dinal 1 direction with i respect to the casing is greater thanthelengthnin:at plane passin through diametrically opposite I pointsina transverse direction and alta right angle theretomn c w :1: 1i r x u Threaded into the bore 110 and: passing coaxially through the. orifice 11, is arvalw'e stem 12 in the form of a common headed bolt, a nut 13 being threaded upon the projecting end of the bolt, with a washer 14 interposed between said nut and the flat end of the boss 9, the nut acting to lock the valve 12 in the de sired position with respect to said boss. Loose on said valve 12 is a second valve member 15 as best shown in Figs. 2, 3 and 5 respectively. Said valve member 15 which is tubular includes a head 16 at one end tapered in accordance with the orifice 11 and a cylindrical body 17 at the other end, the junction or meeting portion between said head and body being curved as at 18 so that said portions gradually merge into one another instead of terminating abruptly. Said valve member has an axlally disposed bore 19 extending the full length thereof and said bore is of a diameter greater than that of the valve stem 12 so as to fit loosely thereon. When in place upon said valve stem 12, the flat outer end of the head .16 engages against the head of said stem 12 as best shown in Fig. 2. It will be noted from said Fig. 2 that the valve stem 12 has a relatively long threaded bearing in the boss 9 so that when the valve casing is filled with 1i uid under pressure, it acts equally on bot the inside and outside surfaces of the valve member 15 and thus automatically centers said member with respect to the stem 12 and orifice 11. It is also to be noted from Fig. 2 that as the fluid under pressure passes into the inner end of the orifice 11, it is guided thereinto by the curved junction part 18 of the member 15 so that said liquid is not broken up into drops but passes thereinto as a continuous and unbroken stream, so that when it passes out of said orifice it is not so easily broken up by wind pressure. The amount of space or opening between the valve member head 16 and said orifice may be accurately adjusted by loosening the nut 13 and then turning the stem 12 in the proper direction after which said nut may again be tightened to lock said member in the desired adjusted position.

By the formation of the orifice in the front Wall portion of the nozzle casing as before described a differential in radial lengths of the wall or surface defining the orifice is provided and a eculiar condition arises in that the discharging liquid meets with more surface friction and consequently with more resistance at the top and bottom parts of the orifice (considering the longitudinal axis of the nozzle casing) than it does at the sides of said orifice. Thus theliquid stream which issues from said orifice is in the form of a cone and is thinner at the top and bottom than at its sides so that it is of a differential cross sectional form, substantially conforming to a Roman capital 0 as shown in Fig. 6.

Due to the inclination of the nozzle casing, the stream thus formed is directed toward the rail so as to apply more of the fluid upon the bolts and adjacent horizontal portions of the "1? joint plates than upon the bottom and top of the same. Thus more of the liquid is applied where most needed and less where less needed as upon the rail sections above said plates.

My improved nozzle comprises but a few parts which are readily assembled and which may be made so rugged as to amply Withstand the hard service it meets in use.

While in describing my invention I have referred to certain details of construction as well as form and arrangement of the parts thereof, I do not wish to be limited thereto except as may be pointed out in the appended claims.

I claim as my invention:

1. A liquid discharge nozzle embodying therein a casing having a discharge orifice therein, a valve member extending through said orifice and normally out of engagement therewith, and means providing a rigid support for said member and upon which it is capable of a limited lateral floating movement so as to be centered with respect to said orifice by the pressure of the liquid being discharged.

2. A liquid discharge nozzle embodying therein a casing having adischarge orifice therein, a rigid supporting member positioned coaxially of said orifice and extending therethrough, a Valve member loosely engaged on said supporting member and positioned in said orifice so as to center itself with respect to said orifice under the action of the pressure of the liquid being discharged.

3. A liquid discharge nozzle embodying therein a casing having a discharge orifice therein, a rigid supporting member positioned coaxially therewith, a valve member associated with said orificeand having a bore of a diameter larger than said supporting member upon which it is mounted, said valve member being acted upon both inside and outside by the pressure of the liquid discharge and being centered thereby with respect to said orifice.

4. A liquid discharge nozzle embodying therein a casing having a tapered dischar e orifice and an interiorly threaded boss iametrically opposite the same, a rigid supporting member threaded into said boss, a valve member positioned on said supporting member and including a tapered head at one end and a tubular body at its other end, said tapered head and tubular body having a bore of such diameter as to permit said valve member to have a limited lateral movement on said supporting member.

5. A liquid discharge nozzle embodying a casing having a discharge orifice therein, a valve member extending through said orifice and normally out of engagement therewith, means providing a rigid support for said valve member, said valve member including a tapered head and a substantially cylindrical body extending from the smaller end of said head and connected thereto by a gradually my hand, this day of curved portion, said head and body having a tubular bore therein larger in diameter than the diameter of said member upon which it is supported.

In testimony whereof I have hereunto set February, 1927.

HARRY W. PROTZELLER. 

